DE69622434D1 - Software für den digitalen fälschungs-schutz von dokumenten - Google Patents

Software für den digitalen fälschungs-schutz von dokumenten

Info

Publication number
DE69622434D1
DE69622434D1 DE69622434T DE69622434T DE69622434D1 DE 69622434 D1 DE69622434 D1 DE 69622434D1 DE 69622434 T DE69622434 T DE 69622434T DE 69622434 T DE69622434 T DE 69622434T DE 69622434 D1 DE69622434 D1 DE 69622434D1
Authority
DE
Germany
Prior art keywords
image
latent
scrambled
images
digital
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69622434T
Other languages
English (en)
Other versions
DE69622434T2 (de
Inventor
Alfred Alasia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphic Security Systems Corp
Original Assignee
Graphic Security Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24255391&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69622434(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Graphic Security Systems Corp filed Critical Graphic Security Systems Corp
Application granted granted Critical
Publication of DE69622434D1 publication Critical patent/DE69622434D1/de
Publication of DE69622434T2 publication Critical patent/DE69622434T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4493—Subsequently rendering the image intelligible using a co-operating image, mask or the like
DE69622434T 1995-11-29 1996-11-26 Software für den digitalen fälschungs-schutz von dokumenten Expired - Lifetime DE69622434T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/564,664 US5708717A (en) 1995-11-29 1995-11-29 Digital anti-counterfeiting software method and apparatus
PCT/US1996/019310 WO1997020298A1 (en) 1995-11-29 1996-11-26 Digital anti-counterfeiting software method and apparatus

Publications (2)

Publication Number Publication Date
DE69622434D1 true DE69622434D1 (de) 2002-08-22
DE69622434T2 DE69622434T2 (de) 2003-02-20

Family

ID=24255391

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69622434T Expired - Lifetime DE69622434T2 (de) 1995-11-29 1996-11-26 Software für den digitalen fälschungs-schutz von dokumenten

Country Status (18)

Country Link
US (1) US5708717A (de)
EP (1) EP0877998B1 (de)
KR (1) KR100425967B1 (de)
CN (1) CN1097945C (de)
AT (1) ATE220818T1 (de)
AU (1) AU713560B2 (de)
BR (1) BR9612772A (de)
CA (1) CA2239086C (de)
DE (1) DE69622434T2 (de)
HK (1) HK1017936A1 (de)
HU (1) HUP9902077A3 (de)
IL (1) IL124682A (de)
NO (1) NO324303B1 (de)
NZ (1) NZ324582A (de)
PL (1) PL182305B1 (de)
RU (1) RU2176823C2 (de)
WO (1) WO1997020298A1 (de)
ZA (1) ZA9610012B (de)

Families Citing this family (151)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6449377B1 (en) * 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US6345104B1 (en) 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US7286684B2 (en) * 1994-03-17 2007-10-23 Digimarc Corporation Secure document design carrying auxiliary machine readable information
US6963859B2 (en) * 1994-11-23 2005-11-08 Contentguard Holdings, Inc. Content rendering repository
JPH08263438A (ja) * 1994-11-23 1996-10-11 Xerox Corp ディジタルワークの配給及び使用制御システム並びにディジタルワークへのアクセス制御方法
US6865551B1 (en) 1994-11-23 2005-03-08 Contentguard Holdings, Inc. Removable content repositories
US20050149450A1 (en) * 1994-11-23 2005-07-07 Contentguard Holdings, Inc. System, method, and device for controlling distribution and use of digital works based on a usage rights grammar
US7117180B1 (en) 1994-11-23 2006-10-03 Contentguard Holdings, Inc. System for controlling the use of digital works using removable content repositories
US7654580B2 (en) * 1995-11-29 2010-02-02 Graphic Security Systems Corporation Self-authenticating documents with printed or embossed hidden images
US7114750B1 (en) * 1995-11-29 2006-10-03 Graphic Security Systems Corporation Self-authenticating documents
US6006227A (en) 1996-06-28 1999-12-21 Yale University Document stream operating system
GB2318324B (en) * 1996-10-19 2001-05-16 Xerox Corp Secure printing system
US6233684B1 (en) * 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
JPH114337A (ja) * 1997-06-11 1999-01-06 Canon Inc 画像処理装置及び方法
US6104812A (en) * 1998-01-12 2000-08-15 Juratrade, Limited Anti-counterfeiting method and apparatus using digital screening
GB2375254B (en) * 1998-04-16 2002-12-24 Digimarc Corp Marking documents with machine-readable data and watermarks
US6325420B1 (en) 1998-08-17 2001-12-04 Inspectron Corporation Method for embedding non-intrusive encoded data in printed matter and system for reading same
US7068787B1 (en) 1998-10-23 2006-06-27 Contentguard Holdings, Inc. System and method for protection of digital works
US6301363B1 (en) 1998-10-26 2001-10-09 The Standard Register Company Security document including subtle image and system and method for viewing the same
US6539475B1 (en) * 1998-12-18 2003-03-25 Nec Corporation Method and system for protecting digital data from unauthorized copying
US6246777B1 (en) * 1999-03-19 2001-06-12 International Business Machines Corporation Compression-tolerant watermarking scheme for image authentication
US6139066A (en) * 1999-03-26 2000-10-31 The Standard Register Company Optically decodable security document
US6050607A (en) 1999-03-26 2000-04-18 The Standard Register Company Security image element tiling scheme
US6396594B1 (en) 1999-03-31 2002-05-28 International Business Machines Corporation Method for providing flexible and secure administrator-controlled watermarks
US7286665B1 (en) 1999-04-06 2007-10-23 Contentguard Holdings, Inc. System and method for transferring the right to decode messages
US6859533B1 (en) 1999-04-06 2005-02-22 Contentguard Holdings, Inc. System and method for transferring the right to decode messages in a symmetric encoding scheme
US7356688B1 (en) 1999-04-06 2008-04-08 Contentguard Holdings, Inc. System and method for document distribution
US6937726B1 (en) 1999-04-06 2005-08-30 Contentguard Holdings, Inc. System and method for protecting data files by periodically refreshing a decryption key
CA2373511C (en) * 1999-05-19 2014-07-08 Digimarc Corporation Methods and systems for controlling computers or linking to internet resources from physical and electronic objects
US20020184152A1 (en) * 1999-06-30 2002-12-05 Martin David A. Method and device for preventing check fraud
US7266527B1 (en) 1999-06-30 2007-09-04 Martin David A Method and device for preventing check fraud
US6885748B1 (en) 1999-10-23 2005-04-26 Contentguard Holdings, Inc. System and method for protection of digital works
US7046804B1 (en) * 2000-04-19 2006-05-16 Canadian Bank Note Company, Ltd System for producing a printable security device image and detecting latent source image(s) therefrom
DE10020556C2 (de) * 2000-04-27 2002-11-21 Witte Plusprint Druckmedien Gm Plakette, insbesondere Zulassungs-, Prüf-, Siegel-, oder Mautplakette, für Kraftfahrzeuge
US7346184B1 (en) * 2000-05-02 2008-03-18 Digimarc Corporation Processing methods combining multiple frames of image data
KR20010113075A (ko) * 2000-06-16 2001-12-28 김태용 빛의 굴절율을 이용한 시스템 보안장치용 암호해독기
GB0015871D0 (en) 2000-06-28 2000-08-23 Rue De Int Ltd A security device
US7743259B2 (en) 2000-08-28 2010-06-22 Contentguard Holdings, Inc. System and method for digital rights management using a standard rendering engine
US6931545B1 (en) 2000-08-28 2005-08-16 Contentguard Holdings, Inc. Systems and methods for integrity certification and verification of content consumption environments
US8225414B2 (en) * 2000-08-28 2012-07-17 Contentguard Holdings, Inc. Method and apparatus for identifying installed software and regulating access to content
US7073199B1 (en) 2000-08-28 2006-07-04 Contentguard Holdings, Inc. Document distribution management method and apparatus using a standard rendering engine and a method and apparatus for controlling a standard rendering engine
CN1170254C (zh) * 2000-09-15 2004-10-06 卓信科技有限公司 光水印
US6870841B1 (en) 2000-09-18 2005-03-22 At&T Corp. Controlled transmission across packet network
US7343324B2 (en) * 2000-11-03 2008-03-11 Contentguard Holdings Inc. Method, system, and computer readable medium for automatically publishing content
US6912294B2 (en) 2000-12-29 2005-06-28 Contentguard Holdings, Inc. Multi-stage watermarking process and system
US7206765B2 (en) * 2001-01-17 2007-04-17 Contentguard Holdings, Inc. System and method for supplying and managing usage rights based on rules
US7774279B2 (en) * 2001-05-31 2010-08-10 Contentguard Holdings, Inc. Rights offering and granting
CN101369299B (zh) 2001-01-17 2010-06-09 康坦夹德控股股份有限公司 管理数字内容使用权利的方法和装置
US7028009B2 (en) * 2001-01-17 2006-04-11 Contentguardiholdings, Inc. Method and apparatus for distributing enforceable property rights
US8069116B2 (en) * 2001-01-17 2011-11-29 Contentguard Holdings, Inc. System and method for supplying and managing usage rights associated with an item repository
US6754642B2 (en) 2001-05-31 2004-06-22 Contentguard Holdings, Inc. Method and apparatus for dynamically assigning usage rights to digital works
US20030220880A1 (en) * 2002-01-17 2003-11-27 Contentguard Holdings, Inc. Networked services licensing system and method
US20030043852A1 (en) * 2001-05-18 2003-03-06 Bijan Tadayon Method and apparatus for verifying data integrity based on data compression parameters
US8001053B2 (en) * 2001-05-31 2011-08-16 Contentguard Holdings, Inc. System and method for rights offering and granting using shared state variables
US8275709B2 (en) * 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US7152046B2 (en) * 2001-05-31 2006-12-19 Contentguard Holdings, Inc. Method and apparatus for tracking status of resource in a system for managing use of the resources
US6973445B2 (en) * 2001-05-31 2005-12-06 Contentguard Holdings, Inc. Demarcated digital content and method for creating and processing demarcated digital works
US6895503B2 (en) * 2001-05-31 2005-05-17 Contentguard Holdings, Inc. Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
US6876984B2 (en) 2001-05-31 2005-04-05 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US7725401B2 (en) * 2001-05-31 2010-05-25 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US6976009B2 (en) 2001-05-31 2005-12-13 Contentguard Holdings, Inc. Method and apparatus for assigning consequential rights to documents and documents having such rights
US8275716B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Method and system for subscription digital rights management
US20030009424A1 (en) * 2001-05-31 2003-01-09 Contentguard Holdings, Inc. Method for managing access and use of resources by verifying conditions and conditions for use therewith
US8099364B2 (en) * 2001-05-31 2012-01-17 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US7222104B2 (en) * 2001-05-31 2007-05-22 Contentguard Holdings, Inc. Method and apparatus for transferring usage rights and digital work having transferrable usage rights
US7774280B2 (en) * 2001-06-07 2010-08-10 Contentguard Holdings, Inc. System and method for managing transfer of rights using shared state variables
EP1393230A4 (de) * 2001-06-07 2004-07-07 Contentguard Holdings Inc Verfahren und vorrichtung zur verwaltung des transfers von rechten
US7853531B2 (en) * 2001-06-07 2010-12-14 Contentguard Holdings, Inc. Method and apparatus for supporting multiple trust zones in a digital rights management system
AU2002345577A1 (en) 2001-06-07 2002-12-23 Contentguard Holdings, Inc. Protected content distribution system
CA2456450C (en) * 2001-08-07 2011-10-04 Pacific Holographics, Inc. System and method for encoding and decoding an image or document and document encoded thereby
GB0202962D0 (en) * 2002-02-08 2002-03-27 Ascent Systems Software Ltd Security printing
US6974080B1 (en) 2002-03-01 2005-12-13 National Graphics, Inc. Lenticular bar code image
WO2003098540A1 (en) 2002-05-14 2003-11-27 Mediasec Technologies, Gmbh Visible authentication patterns for printed document
US6782116B1 (en) 2002-11-04 2004-08-24 Mediasec Technologies, Gmbh Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation
US6983048B2 (en) * 2002-06-06 2006-01-03 Graphic Security Systems Corporation Multi-section decoding lens
DE10237059A1 (de) * 2002-08-09 2004-02-26 Giesecke & Devrient Gmbh Datenträger
US20070029394A1 (en) * 2005-08-01 2007-02-08 Wicker David M Covert document system
US20070241554A1 (en) * 2002-10-10 2007-10-18 Document Security Systems, Inc. Survivable security features for image replacement documents
US7396048B2 (en) * 2002-10-15 2008-07-08 Ncr Corporation Internet stamp
US7305105B2 (en) * 2005-06-10 2007-12-04 Ecole polytechnique fédérale de Lausanne (EPFL) Authentication of secure items by shape level lines
US7295717B2 (en) * 2002-10-16 2007-11-13 Ecole polytechnique fédérale de Lausanne (EPFL) Synthesis of superposition images for watches, valuable articles and publicity
US7751608B2 (en) * 2004-06-30 2010-07-06 Ecole Polytechnique Federale De Lausanne (Epfl) Model-based synthesis of band moire images for authenticating security documents and valuable products
US6886863B1 (en) 2002-12-19 2005-05-03 The Standard Register Company Secure document with self-authenticating, encryptable font
KR20050103977A (ko) * 2003-03-06 2005-11-01 디지맥 코포레이션 카메라 및 디지털 워터마킹 시스템들 및 방법들
US6985607B2 (en) * 2003-03-27 2006-01-10 Graphic Security Systems Corporation System and method for authenticating objects
IL155659A (en) * 2003-04-29 2008-04-13 Ron Golan Method and apparatus for providing embossed hidden images
AU2003902810A0 (en) * 2003-06-04 2003-06-26 Commonwealth Scientific And Industrial Research Organisation Method of encoding a latent image
WO2005006025A2 (en) * 2003-06-30 2005-01-20 Graphic Security Systems Corporation Illuminated decoder
AU2003903501A0 (en) * 2003-07-07 2003-07-24 Commonwealth Scientific And Industrial Research Organisation A method of forming a reflective authentication device
AU2003903502A0 (en) * 2003-07-07 2003-07-24 Commonwealth Scientific And Industrial Research Organisation A method of forming a diffractive authentication device
WO2005002880A1 (en) * 2003-07-07 2005-01-13 Commonwealth Scientific And Industrial Research Organisation Method of encoding a latent image
US20050041846A1 (en) * 2003-08-19 2005-02-24 Chen Shih Ping Document counterfeit protection mechanism
US6980654B2 (en) * 2003-09-05 2005-12-27 Graphic Security Systems Corporation System and method for authenticating an article
US7421581B2 (en) * 2003-09-30 2008-09-02 Graphic Security Systems Corporation Method and system for controlling encoded image production
US7386177B2 (en) * 2003-09-30 2008-06-10 Graphic Security Systems Corp. Method and system for encoding images using encoding parameters from multiple sources
WO2005036474A2 (en) * 2003-10-10 2005-04-21 American Bank Note Holographics, Inc. Invisible encoded indicia comprised of latent image
US7839419B2 (en) 2003-10-23 2010-11-23 Microsoft Corporation Compositing desktop window manager
US7817163B2 (en) 2003-10-23 2010-10-19 Microsoft Corporation Dynamic window anatomy
US7114074B2 (en) * 2003-12-22 2006-09-26 Graphic Security Systems Corporation Method and system for controlling encoded image production using image signatures
US7512249B2 (en) * 2004-04-26 2009-03-31 Graphic Security Systems Corporation System and method for decoding digital encoded images
US7551752B2 (en) * 2004-04-26 2009-06-23 Graphic Security Systems Corporation Systems and methods for authenticating objects using multiple-level image encoding and decoding
US7630513B2 (en) * 2004-04-26 2009-12-08 Graphic Security Systems Corporation System and method for network-based object authentication
IL161904A0 (de) 2004-05-10 2005-11-20 Starboard Technologies Ltd
DE102004022976B4 (de) * 2004-05-10 2010-09-16 Clemens Brüntrup Offset-Reproduktion GmbH Steganographisches Druckverfahren und Verifikationssystem
US7729509B2 (en) * 2004-06-18 2010-06-01 Graphic Security Systems Corporation Illuminated lens device for use in object authentication
RU2268152C9 (ru) 2004-08-11 2006-05-20 Милимарекс Лимитед Печатная продукция и способ ее изготовления (варианты)
JP4632413B2 (ja) * 2004-09-01 2011-02-16 キヤノン株式会社 情報暗号化装置及び情報配信装置並びにそれらの制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体
AU2005282617A1 (en) * 2004-09-07 2006-03-16 Document Security Systems, Inc. Document containing scanning survivable security features
US20060284411A1 (en) * 2004-12-16 2006-12-21 Wu Judy W Digitally printed anti-copy document and processes and products therefor
CN100349159C (zh) * 2005-01-18 2007-11-14 北京北大方正电子有限公司 一种在页面光栅化时刻附加标记的方法
US20060271915A1 (en) * 2005-05-24 2006-11-30 Contentguard Holdings, Inc. Usage rights grammar and digital works having usage rights created with the grammar
NO20052656D0 (no) 2005-06-02 2005-06-02 Lumex As Geometrisk bildetransformasjon basert pa tekstlinjesoking
GB0514701D0 (en) * 2005-07-18 2005-08-24 Rue De Int Ltd Decoding device
US8282015B2 (en) * 2005-08-01 2012-10-09 Document Security Systems, Inc. Document with linked viewer file for correlated printing
AU2006275525A1 (en) * 2005-08-01 2007-02-08 Document Security Systems, Inc. Covert document system
US7845572B2 (en) * 2005-08-01 2010-12-07 Document Security Systems, Inc. Solid-color embedded security feature
US7438078B2 (en) * 2005-08-05 2008-10-21 Peter Woodruff Sleeping bag and system
US7487915B2 (en) 2005-09-09 2009-02-10 Graphic Security Systems Corporation Reflective decoders for use in decoding optically encoded images
US20090129592A1 (en) 2005-12-05 2009-05-21 Gerhard Frederick Swiegers Method of forming a securitized image
WO2007127944A2 (en) * 2006-04-27 2007-11-08 Document Security Systems, Inc. Double-blind security features
BRPI0710341A2 (pt) * 2006-05-05 2011-08-09 Document Security Systems Inc midia de impressão de segurança reforçada e método de produção de uma mìdia de impressão de segurança reforçada
US7860268B2 (en) * 2006-12-13 2010-12-28 Graphic Security Systems Corporation Object authentication using encoded images digitally stored on the object
US20090121471A1 (en) * 2007-01-31 2009-05-14 Gaffney Gene F Method and system for producing documents, websites, and the like having security features
WO2008100171A1 (en) * 2007-02-15 2008-08-21 Zuev, Boris Alexandrovich Printed product
WO2008100173A1 (fr) * 2007-02-15 2008-08-21 Zuev, Boris Alexandrovich Procédé de fabrication d'articles imprimés et article imprimé fabriqué par ce procédé
JP2009027525A (ja) * 2007-07-20 2009-02-05 Nec Corp 光伝送システムおよび光伝送方法
CA2720274A1 (en) * 2008-04-03 2009-10-08 Commonwealth Scientific And Industrial Research Organisation A hidden image method and a hidden image apparatus
LT5602B (lt) 2008-12-03 2009-10-26 Aleksej Zaicevskij Būdas spausdintos produkcijos autentiškumui nustatyti
US8351087B2 (en) * 2009-06-15 2013-01-08 Ecole Polytechnique Federale De Lausanne (Epfl) Authentication with built-in encryption by using moire parallax effects between fixed correlated s-random layers
JP2012018324A (ja) * 2010-07-08 2012-01-26 Sony Corp 多視点画像記録媒体および真贋判定方法
US8792674B2 (en) 2010-10-11 2014-07-29 Graphic Security Systems Corporation Method for encoding and simultaneously decoding images having multiple color components
US9092872B2 (en) 2010-10-11 2015-07-28 Graphic Security Systems Corporation System and method for creating an animation from a plurality of latent images encoded into a visible image
SG189354A1 (en) * 2010-10-11 2013-05-31 Graphic Security Systems Corp Method for constructing a composite image incorporating a hidden authentication image
JP5715386B2 (ja) * 2010-11-19 2015-05-07 キヤノン株式会社 画像処理装置及びその制御方法、並びにプログラム及び記憶媒体
JP5942367B2 (ja) 2011-09-08 2016-06-29 オムロン株式会社 導体接続器具およびこれを用いた中継ユニット
RU2469400C1 (ru) * 2011-11-17 2012-12-10 Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." Способ преобразования растрового изображения в метафайл
HUP1200097A2 (hu) * 2012-02-15 2013-08-28 Glenisys Kft Biztonsági elem és eljárás nyomat eredetiség ellenõrzésére
US9792449B2 (en) 2012-05-31 2017-10-17 Fleur De Lis Group, Llc Cryptic notes and related methods
US9356784B2 (en) * 2012-05-31 2016-05-31 Fleur De Lis Group, Llc Cryptic notes and related apparatus and methods
US20140369569A1 (en) * 2013-06-13 2014-12-18 Document Security Systems, Inc. Printed Authentication Pattern for Low Resolution Reproductions
JP6112357B2 (ja) * 2013-09-02 2017-04-12 独立行政法人 国立印刷局 偽造防止用潜像画像表出構造
US20150097827A1 (en) * 2013-10-09 2015-04-09 Adobe Systems Incorporated Target Region Fill Utilizing Transformations
CN103895374B (zh) * 2013-11-01 2016-09-14 中钞油墨有限公司 具有光变结构的防伪图纹及其制备方法
CN103809926B (zh) * 2014-02-18 2016-08-17 深圳市巨鼎医疗设备有限公司 一种带标示的喷墨打印的方法
CN104637025B (zh) * 2015-01-28 2018-04-20 陕西科技大学 一种基于莫尔纹机理的对接防伪方法
JP6394974B2 (ja) * 2015-02-24 2018-09-26 独立行政法人 国立印刷局 立体画像発現構造
US9349085B1 (en) 2015-04-16 2016-05-24 Digicomp Inc. Methods and system to decode hidden images
JP6361978B2 (ja) * 2015-04-21 2018-07-25 独立行政法人 国立印刷局 潜像印刷物
US10286716B2 (en) 2015-10-27 2019-05-14 Ecole Polytechnique Fédérale Lausanne (EPFL) Synthesis of superposition shape images by light interacting with layers of lenslets
KR102137944B1 (ko) 2018-10-25 2020-07-27 한국조폐공사 위조방지용 인쇄물 및 그 제조 방법
CN111768546A (zh) * 2020-06-30 2020-10-13 新奥（中国）燃气投资有限公司 对异常企业发票自动预警的方法、装置及系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952080A (en) * 1957-09-12 1960-09-13 Teleregister Corp Cryptic grid scrambling and unscrambling method and apparatus
US3675948A (en) * 1969-09-10 1972-07-11 American Bank Note Co Printing method and article for hiding halftone images
US3937565A (en) * 1974-06-03 1976-02-10 Alasia Alfred Victor Process of coding indicia and product produced thereby
US5113213A (en) * 1989-01-13 1992-05-12 Sandor Ellen R Computer-generated autostereography method and apparatus
US5027401A (en) * 1990-07-03 1991-06-25 Soltesz John A System for the secure storage and transmission of data
US5396559A (en) * 1990-08-24 1995-03-07 Mcgrew; Stephen P. Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns
US5311329A (en) * 1991-08-28 1994-05-10 Silicon Graphics, Inc. Digital filtering for lenticular printing
IL100863A0 (en) * 1992-02-04 1993-09-22 Yitzchak Pomerantz Apparatus for scrambling and unscrambling documents
US5321749A (en) * 1992-09-21 1994-06-14 Richard Virga Encryption device
US5303370A (en) * 1992-11-13 1994-04-12 Score Group, Inc. Anti-counterfeiting process using lenticular optics and color masking
EP0598357B1 (de) * 1992-11-15 1999-02-24 FONTECH Ltd Verfahren zum Übertragen und/oder Speichern von Informationen

Also Published As

Publication number Publication date
NO982445D0 (no) 1998-05-28
NO982445L (no) 1998-07-29
HUP9902077A2 (hu) 1999-10-28
ATE220818T1 (de) 2002-08-15
BR9612772A (pt) 2000-10-24
PL182305B1 (pl) 2001-12-31
WO1997020298A1 (en) 1997-06-05
HK1017936A1 (en) 1999-12-03
PL326891A1 (en) 1998-10-26
EP0877998B1 (de) 2002-07-17
DE69622434T2 (de) 2003-02-20
ZA9610012B (en) 1997-06-17
US5708717A (en) 1998-01-13
IL124682A (en) 2001-08-08
RU2176823C2 (ru) 2001-12-10
CN1207818A (zh) 1999-02-10
EP0877998A1 (de) 1998-11-18
AU713560B2 (en) 1999-12-02
NO324303B1 (no) 2007-09-17
HUP9902077A3 (en) 2000-02-28
KR19990071733A (ko) 1999-09-27
CA2239086C (en) 2004-03-02
IL124682A0 (en) 1998-12-06
CN1097945C (zh) 2003-01-01
NZ324582A (en) 1999-01-28
AU1146097A (en) 1997-06-19
CA2239086A1 (en) 1997-06-05
KR100425967B1 (ko) 2004-05-17

Similar Documents

Publication Publication Date Title
ATE220818T1 (de) Software für den digitalen fälschungs-schutz von dokumenten
ATE265125T1 (de) Vorrichtung und verfahren zur erzeugung eines kompositbildes
CA2138919A1 (en) Electronic Signature Method and Apparatus
HUP0101926A2 (hu) Hamisítás elleni eljárás és digitális raszterezést alkalmazó berendezés
CA2033359A1 (en) Method of matching patterns and apparatus therefor
EP0731405A3 (de) Gerät und Verfahren zur Sicherung von Daten
WO2005032031A3 (en) Method and system for suppression of features in pages of content
DE69813230D1 (de) Verfahren zur markierung eines komprimierten digitalvideosignals
DE69632212D1 (de) Verfahren zur Bildumwandlung und -Kodierung
TW373152B (en) Method to process posts in an automatic address-reading system
DE69113373T2 (de) Verfahren und vorrichtung zur verbesserten farbwiedergabe von papierbildern von elektronischen kameras.
EP0751674A3 (de) Bildreproduktionsverfahren und -gerät
KR970010087B1 (en) Postprocessing method for digital image
DE69531316D1 (de) Vorrichtung zur Erzeugung eines Bildes durch Kombination von Teilbildern
SE9602503D0 (sv) Reklam vid TV-sändning
EP0854636A3 (de) Hierarchische Standardmustervergleichsfilter
DE69609137T2 (de) Vorrichtung und verfahren zur kodierung von videobildern.
JPS57191784A (en) Picture data processing system
EP0782325A3 (de) Bilderzeugungssystem
EP0791892A3 (de) Bildverarbeitungsgerät und -verfahren
CA2343275A1 (en) Method for generating digital watermarks for electronic documents
DE60137281D1 (de) Verfahren und Vorrichtung zur Eliminierung von Farbenmoire
JPS6477374A (en) Image data compression system
JPH0787297A (ja) 追跡機能付画像形成装置
EP0917347A3 (de) Dynamisch einstellbare Unschärfenmaskierung für digitale Bildverarbeitung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition